With this option, you can sync all your Google Drive files on your iPhone. You can upload iOS files to Google Drive or download Drive files to iPhone storage, you can even move files from iCloud to Google Drive or vice versa. Below are simple steps to sync Google Drive with iPhone and iPad and access all the Drive files on your iPhone Files app.
Steps to Sync Google Drive with iPhone Files App
Now you can access all the Google Drive files, folders, and media in the Files app on your iPhone and iPad.